Korg Forums

carlgoodhines · Joined: 19 Apr 2009 Posts: 39

Good Morning. Last night, my Kronos was acting a bit strange. The volume wasn't going to zero-I was nearly at full volume with the master volume set to zero. The individual sliders were operating very slowly. ie, I push one from 0 to 127, but on the screen it didn't shoot to 127, it merely "walked" there. I checked my solaris and it operated fine. Strange.

GregC · Posted: Sun Aug 06, 2017 1:33 pm Post subject:

not much to go on.

what mode where you in ? any other devices ?

My wild guess is you accidentally recorded some changes. And the solaris played them back.
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carlgoodhines · Joined: 19 Apr 2009 Posts: 39

Nope. This is with everything except Solaris (voltage regulator, mixer, Kronos, and speaker) powered up. Besides, Kronos and Solaris are not connected in any way. It's almost as if it's relying on a volume pedal (I don't use one) to do the control changes. I powered off and on, and it fixed it. For a few minutes. Does it in Performance or patch mode.
Still, why would levels drag when moving a slider? Acting like a PC would if it had a virus, or several routines running at the same time.
Bad master volume pot? No scratchy noise when wiggling/turning it.

pete.m · Senior Member Joined: 05 Apr 2013 Posts: 333

I've noticed that, once or twice in Seq mode, my Kronos can get slow. For example, I might finish an event edit or have tried to move the song to another bar, and it takes slightly longer to get there. I have a feeling that it may be more likely in a song where I have already recorded a particularly high number of non-note events (ctrl changes, etc), but the issue has not yet bugged me enough to go into it more deeply.

Are your problems occurring in similar circumstances?

GregC · Posted: Sun Aug 06, 2017 5:10 pm Post subject:

SanderXpander · Platinum Member Joined: 29 Jul 2011 Posts: 7860

When you say "master volume", do you mean the master slider or the potmeter on the left? If the potmeter, that is an analog control that isn't digitally controlled in any way. It is hard wired to the L/R and headphones outputs. If you have it closed and you still hear sound, something is broken.

Other than that, it kinda sounds like you have some kind of midi loop or some device sending lots of controller data to the Kronos. Is it acting this way without any external gear connected besides speakers/headphones and mains?

CGoodhines · Joined: 15 Aug 2014 Posts: 45 Location: Central NY

I have nothing connected to it ( I have a large rig).
It's happened more than once.
Yes, it's the rotary pot for master volume.
But, the sliders are also acting slowly. Very.
Like, I can push a slider to 127, and watch the values "walk" to 127, over 2-3 seconds.

GregC · Posted: Mon Aug 07, 2017 2:44 pm Post subject:

CGoodhines · Joined: 15 Aug 2014 Posts: 45 Location: Central NY

It's definitely the master volume pot.
Kinda sucks because I'm nowhere near a service center.
I can push DOWN on the pot and it works, but won't do that for the risk of breaking all of the solder connections.
Rule #1: Soft cases will work, but not forever! Stick with ATA.

voip · Platinum Member Joined: 27 Nov 2014 Posts: 2416

There is a chance of some confusion here. There's the "Main Volume" rotary control, top left of the control surface, and the "Master" volume slider, which is the ninth slider from the left.

The Main Volume control should not slow down the Kronos, since it is not linked to the software side of things. The whole of the left hand side control surface is on one printed circuit board, apart from the joystick, A B buttons and ribbon, and it is possible that there is actually some other connectivity issue on the board, so that pushing down on the Main Volume control may simply be flexing the PCB. It is possible that, if there is poor connectivity, the main board could sending a lot of unnecessary data (value change) traffic for the main processor to handle, hence overall slowing the keyboard down. This is, of course, mere conjecture at this point, and one way to investigate this further might be to connect the Kronos to a PC and run MidiOx or something similar to analyse the MIDI data coming from the Kronos.

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